Gasolene or gas engine.



Patented July 4, |899.

GASOLEN EEEEEEEEEEEEEE E.

@MCM BY M-M Q 13u13 ATTORNEY WITNESSES: INVENTOR Patented VJuly 4, |899.

J. A. HARP.

GAsoLENE un GAS ENGINE.

(Application led Feb. 14, 189B.)

2 Sheets-Sheet 2.

(No Moduli) T N E V N UNITED STATES.

PATENT OFFICE.

JERRY A. HARP, OF URBANA, OHIO.

GAsoLl-:NE oR GAS ENGINE.

SPECIFICATION forming part of Letters Patent No. 628,316, dated July 4,1899.

y'Application filed February 14, 1898.

To all whom if may concern:

Be it known that I, JERRY A. HARP, a citizen of the United States,residing at Urbana, in the county of Champaign and State of Ohio, haveinvented certain new and useful Improvements in Gas-Engines, of whichthe following is a specification.

My invention relates to gas-enginesoperated by power produced by theexplosion of gas or other'similar substance, and has for its object toprovide an engine in' which the eX- plosion takes place at everyrevolution and which has but one cylinder, one piston, and one follower.This object I accomplish by the means and in the m anner hereinaftermore fully described in `detail and particularly pointed out in theclaims, reference being had to the accompanying drawings, in which likereference-letters indicate like parts in all the ligures.

Figure l is a side elevation of my invention. Fig. 2 is a detail viewofthe intakevalve. Figs. 3 and 4 are detail Views of theexplosion-chamber. Fig. 5 is a central horizontal sectional view of myinvention. Fig. 6 is a detail View of the exhaust-valve.

My invention consists of a bed plate or frameA of suitable size andshape. On said bed-plate A is mounted a gas-engine consisting of acylinder B, open at each end. Near one end of said cylinder B, on oneside, is the intake-valve C, which may be of any of the usual formsadapted to be operated by suction, preferably a spring-valve. On thesame side, toward the other end of the cylinder, is theexplosion-chamber D, which communicates by a suitable orifice with theinside of the cylinder B. In the explosion-chamber D are twocarbon-points d, connected with an electric circuit a'nd normally kepttogether by springs d. On the other side of the cylinder, opposite theintake-valve C, is the eX- haust-valve E, which may be of any of theusual forms, preferably spring, that can be operated by pressure. In theend of the cylinder B nearest the intake-valve C works a piston-head F,connected by the piston-rod Gr to the crank-shaft H. The crank-shaft I-Iis journaled in bearings mounted on the bed.-y plate A and has on eachend a .ily-wheel I. On the crank-shaft II, just outside one of itsSerial No. 670,240. (Nomodel.)

bearings, is a beveled cog-wheel h. A counter-shaft J, having at one enda beveled cogwheel j, which gears with the cog-wheel h, is mounted inbearings attached to said bedplate A; On the counter-shaft J a cam j ismounted which operates a finger j?, pivotally secured to the bed-plateA, said finger ,9'2 engaging one of the holders of the carbon-poin ts cland adapted to break the contact of said carbon-points d at eachrevolution of the engine. On the end of said counter-shaft J is abeveled cog-wheel js. Mounted in bearings liked at the oppositeen'd ofthe bed-plate A from the crank-shaft I-I is a shaft K, having at one enda beveled cog-wheel 7c, which gears with the cog-wheel ja. Working inthe opposite end of the cylinder B from the pistonhead F is a followerL, connected by the rod M to the cross-head N, which slides back andforth along the rods O. The rods O are secured in supports attached tothe bed-plate A and surrounded by springs o, adapted to press thecross-head N away from the cylinder B. Mounted on ashaft K is aneccentric P, adapted to bear against the cross-head N.

The operation of my invention is as follows: The piston-head F being atits extreme position near the end of the cylinderB and the eccentricP'having pressed the cross-head N as far as possible and being about torelease it, the follower L is at its farthest position toward thepiston-head F and about to return toward the end of the cylinder B bythe removal of eccentric P, the pressure of whatever gas remains in thecylinder B, and the springs 0. As the follower L withdraws it sucks inthrough the valve C a new charge of gas and the momentum acquired by thepreceding revolution causes the piston-head F to return along thecylinder B until the openings to the valves C and E are closed, when therevolution of the counter-shaft .I causes the cam j' to move thefingerjg, breaking the contact of the carbon-points d. This produces aspark in the explosion-chamber D and fires the charge in the cylinder B.The expanding gas and the cross-head N which the eccentric P is nowpressing back cause the piston-head F to recede toward the end of thecylinder B until the opening to the valve E is exposed, when thepressure causes IOO the valve to open and permit the exploded gas toescape. The same process is then repeated.

Having thus described my invention, what I claim as new, and desire tosecure by Letters Patent, is-

1. In a gas-engine provided with a cylinder, intake and exhaust valves,an igniter, a piston and a follower, an eccentric adapted to force thefollower into the cylinder, a shaft operating said eccentric andprovided at one end with a beveled cog-wheel, a counter-shaft providedwith a beveled cog-Wheel gearing with said wheel and means for operatingthe same, substantially as shown and described.

2. In a gas-engine provided with a cylinder, intake and exhaust valves,an igniter and a piston, a follower moving in said cylinder oppositesaid piston, a cross-head connected with said follower, rods on whichsaid cross-head slides, springs surrounding said rods and adapted topush said cross-head outward and means for operating the samesubstantially as shown and described.

3. In a gas-engine, a cylinder, an intakevalve operated by suction onone side of said cylinder, an exhaust-valve opposite said intake-valveon said cylinder, said exhaust- 'to engage said finger, a followermoving in said cylinder opposite said piston, a crosshead connected withsaid follower, rods along which said cross head slides, springssurrounding said rods and adapted to press said cross-head outward, aneccentric adapted to bear against said cross-head, a shaft operatingsaid eccentric, said shaft provided at one end with a beveled cog-wheel,and a beveled cog-wheel on the end of the counter-shaft adapted to gearwith said wheel, substantially.

as shown and described. I

J. A. HARP.

IVitnesses:

W. M. ROCK, EDGAR G. BAN'rA.

